MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many of which point to other PDF files, suggesting a link farm or SEO spamming operation. One of the embedded URLs, https://nipisod.ru/strik?utm_term=which+washer+brand+is+most+reliable, is presented as a search result, likely to trick users into clicking. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
Heuristics 5
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://nipisod.ru/strik?utm_term=which+washer+brand+is+most+reliable
- https://cdn-cms.f-static.net/uploads/4426945/normal_6009fe97b4db0.pdf
- https://cdn-cms.f-static.net/uploads/4487641/normal_601a18f3957f5.pdf
- https://cdn-cms.f-static.net/uploads/4409616/normal_600c68309e29e.pdf
- https://cdn-cms.f-static.net/uploads/4530712/normal_604fab1b7a451.pdf
- https://static.s123-cdn-static.com/uploads/4374188/normal_5ff829372c2fa.pdf
- https://xewuligatojijow.weebly.com/uploads/1/3/5/3/135395235/febofe-nomasadupa-timubakul-lopapezominox.pdf
- https://kojezuduw.weebly.com/uploads/1/3/5/3/135326104/mapabogobesubururaru.pdf
- https://suxewanevot.weebly.com/uploads/1/3/4/5/134595646/vanefojikaja_fidovuk_rewuwiged.pdf
- https://vofodiwe.weebly.com/uploads/1/3/5/3/135350815/vagefapasabapek.pdf
- https://mijagipiked.weebly.com/uploads/1/3/4/5/134524971/xapiredi.pdf
- https://redorofi.weebly.com/uploads/1/3/5/3/135383823/8130766.pdf
- https://cdn-cms.f-static.net/uploads/4367313/normal_600ca744bcdf9.pdf
- https://static.s123-cdn-static.com/uploads/4482863/normal_5ffa86f2ab05d.pdf
- https://cdn-cms.f-static.net/uploads/4420025/normal_6022bc4d173e6.pdf
- https://cdn-cms.f-static.net/uploads/4491151/normal_604e1645006f6.pdf
- https://wazolupagod.weebly.com/uploads/1/3/0/7/130775763/5911062.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/paxuvagal/netevejunivekuleno.pdf
- https://s3.amazonaws.com/zunaduxa/dupenitirujudexosigan.pdf
- https://s3.amazonaws.com/pezofut/xamilinarojonogiges.pdf
- https://s3.amazonaws.com/wofaxil/6725254256.pdf
- https://s3.amazonaws.com/jinotugiwomo/7979726824.pdf
- https://s3.amazonaws.com/vunizi/17323215556.pdf
- https://s3.amazonaws.com/jotizifime/cien_aos_de_soledad_audiolibro_capitulo_17.pdf
- https://s3.amazonaws.com/tawosutosuxi/voltage_controlled_oscillator_using_ic_555.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00014e43.bindaa6b024f631585e48a3861a61df03beed22d4f3a358f1050aa08505f91052d0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E43 | 5424 bytes |
font_01_sfnt_off0001609a.bin5ccaee8e887ce9040191a6a9df3de97eb4be949b01a749637a2c7166b0d7f343 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1609A | 11564 bytes |
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